Oh man...you have a lot of work ahead of you.
Many of the members on this forum will take a look at a few of these pictures and know the amount of time and patience needed to do this.
Now - don't get me wrong, it is all fixable and there is a wealth of knowledge on this board so keep the questions coming.
There are many build threads that will take you through all of this work and point out where to find parts.
A few to reference for good advice/steps (in no particular order):
1956cameo -
http://67-72chevytrucks.com/vboard/s...d.php?t=376589
hgs_notes -
http://67-72chevytrucks.com/vboard/s...d.php?t=242701
Big J -
http://67-72chevytrucks.com/vboard/s...d.php?t=264226
jaros44sr -
http://67-72chevytrucks.com/vboard/s...d.php?t=210641
turp mcspray -
http://67-72chevytrucks.com/vboard/s...d.php?t=505987
1949gmc -
http://67-72chevytrucks.com/vboard/s...d.php?t=350929
Lks Dcvn (mine) -
http://67-72chevytrucks.com/vboard/s...d.php?t=341224
You will have hours into reading these and going over them again and again to see how things go together.
These all know their stuff and helped me immensely by documenting their work.
Spend some time reviewing these builds to save yourself some headaches along the way. I did and many of these guys saved my hide a few times.
Congrats on your new truck.